A significant quantity of its energy requirements are met by a rainwater-collection system, solar power, and carefully designed passive cooling (Photo: Studio RMA)

Hi’ilani EcoHouse is currently connected to mains electricity, but the plan is for it to eventually go fully off-grid (Photo: Studio RMA)

The house contains four bedrooms, five bathrooms, a spa facility, two kitchens, wine cellar, 150-seat amphitheater, a 240 sq ft (22 sq m) indoor music stage, and even a recording studio (Photo: Studio RMA)

The home draws much of its required energy from natural sources (Photo: Studio RMA)

A significant quantity of its energy requirements are met by a rainwater-collection system, solar power, and carefully designed passive cooling (Photo: Studio RMA)

Hi’ilani EcoHouse is currently connected to mains electricity, but the plan is for it to eventually go fully off-grid (Photo: Studio RMA)

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Article Summary

US architectural firm Studio RMA recently completed the Hi’ilani EcoHouse: a two-family, low-energy property located on an attractive plot on Hawaii's Big Island. The building draws much of its required energy from renewable sources, and Studio RMA strove to offset the CO2 produced during construction by planting extensive forestry.